133944215 has 8 divisors (see below), whose sum is σ = 161907120. Its totient is φ = 106372672.

The previous prime is 133944193. The next prime is 133944221. The reversal of 133944215 is 512449331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133944215 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97085 + ... + 98454.

It is an arithmetic number, because the mean of its divisors is an integer number (20238390).

Almost surely, 2^133944215 is an apocalyptic number.

133944215 is a deficient number, since it is larger than the sum of its proper divisors (27962905).

133944215 is a wasteful number, since it uses less digits than its factorization.

133944215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195681.

The product of its digits is 12960, while the sum is 32.

The square root of 133944215 is about 11573.4271069550. The cubic root of 133944215 is about 511.6519737222.

It can be divided in two parts, 1339 and 44215, that added together give a palindrome (45554).

The spelling of 133944215 in words is "one hundred thirty-three million, nine hundred forty-four thousand, two hundred fifteen".